19806918

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{76771}}^1$

素因数の和:76819

約数の個数: 16

約数和(自身を含む): 40535616

約数和(自身を除く): 20728698

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 76771, 153542, 230313, 460626, 3301153, 6602306, 9903459, 19806918]

約数ペア:

[(1, 19806918), (2, 9903459), (3, 6602306), (6, 3301153), (43, 460626), (86, 230313), (129, 153542), (258, 76771)]